Route · BOI → DEN · 2020–2025 BTS data
Boise to Denver
The BOI–DEN corridor (Boise, ID → Denver, CO) runs ahead of the national average, served by 12 carriers across roughly 649 miles.
Data updated 2026-06-13
- 84%
- On-time
- +5 pts
- vs US avg
- 72 min
- Delay when late
- 14,565
- Flights
Cancelled
0.7%
Best Month
Oct 2024 96%
Worst Month
Jun 2025 70%
Distance
649 mi
Carriers
12
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 258 | 37 | 0 | 1 | WN,F9,UA,OO |
| Nov 2025 | 245 | 38 | 0 | 0 | OO,UA,F9,WN |
| Oct 2025 | 259 | 48 | 0 | 0 | OO,UA,WN,F9 |
| Sep 2025 | 250 | 47 | 0 | 1 | UA,WN,OO,F9 |
| Aug 2025 | 259 | 69 | 1 | 3 | OO,WN,F9,UA |
| Jul 2025 | 261 | 77 | 3 | 1 | OO,UA,WN,F9 |
| Jun 2025 | 254 | 76 | 1 | 1 | OO,UA,WN,F9 |
| May 2025 | 259 | 77 | 1 | 2 | OO,UA,WN,F9 |
| Apr 2025 | 242 | 49 | 0 | 1 | OO,UA,WN |
| Mar 2025 | 244 | 34 | 0 | 1 | OO,UA,WN |
| Feb 2025 | 222 | 40 | 1 | 0 | OO,UA,WN |
| Jan 2025 | 246 | 43 | 0 | 0 | OO,UA,WN |
| Dec 2024 | 244 | 32 | 1 | 0 | OO,UA,WN |
| Nov 2024 | 232 | 30 | 4 | 0 | OO,UA,WN |
| Oct 2024 | 243 | 10 | 0 | 0 | UA,OO,WN |
| Sep 2024 | 235 | 16 | 1 | 0 | WN,OO,UA |
| Aug 2024 | 245 | 32 | 4 | 0 | WN,OO,UA |
| Jul 2024 | 255 | 40 | 4 | 1 | OO,UA,WN |
| Jun 2024 | 243 | 36 | 1 | 2 | OO,UA,WN |
| May 2024 | 239 | 31 | 3 | 0 | OO,UA,WN |
| Apr 2024 | 235 | 27 | 0 | 0 | OO,UA,WN |
| Mar 2024 | 209 | 26 | 2 | 0 | OO,UA,WN |
| Feb 2024 | 203 | 32 | 1 | 2 | OO,UA,WN |
| Jan 2024 | 217 | 48 | 13 | 0 | WN,OO,UA |
Cancellation Rate
0.7%
41 of 5,799 flights
Diversion Rate
0.3%
16 of 5,799 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BOI - Boise
Full on-time, delay-cause, and seasonal performance for Boise, ID.
Origin airport →DEN - Denver
Full on-time, delay-cause, and seasonal performance for Denver, CO.
Destination airport →Compare the two airports
See BOI and DEN side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BOI–DEN.
Routes with a similar on-time rate
What the Data Says About BOI to DEN
Bureau of Transportation Statistics records show Boise to Denver (BOI to DEN) running a 84% on-time rate over 14,565 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 72.4 minutes. The 649-mile corridor is served by 12 carriers, and over the last 24 months 0.7% of 5,799 flights were cancelled, 0.3% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 96% on-time, while Jun 2025 came in at just 70% - a 26-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.